Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://infrive.ru/uplcv?utm_term=how+to+find+hidden+texts+on+android PDF link annotation

  • http://universalthailand.com/images/uploads/ckfinder/files/38823788505.pdfIn PDF document text
  • http://german-ex.com/images/blog/file/78370272665.pdfIn PDF document text
  • https://livre-d-art.com/ckfinder/userfiles/files/vawuvisawusataxelas.pdfIn PDF document text
  • https://rolcsi-bau.hu/userfiles/files/36136318433.pdfIn PDF document text
  • https://indiansecuritisation.com/ckfinder/userfiles/files/fexajobiwigazow.pdfIn PDF document text
  • http://nhadep30giay.com/uploads/image/files/nileza.pdfIn PDF document text
  • http://basumati.com/app/webroot/ckfinder/userfiles/files/dojumi.pdfIn PDF document text
  • https://vidaleve.net/ckfinder/userfiles/files/31109627648.pdfIn PDF document text
  • http://cuanhomkinhtoanthang.com/media/file/jakutowu.pdfIn PDF document text
  • http://alessandrobelleseveterinario.eu/userfiles/files/69208004928.pdfIn PDF document text
  • http://poddertradingandindustries.com/userfiles/file/raxagegixe.pdfIn PDF document text
  • https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/236045600b844a0e55ebdbb7c24a389d/4858279475.pdfIn PDF document text
  • https://insp.biz/img/file/85610986196.pdfIn PDF document text
  • http://japhina.com/upload/file/jaxaragij.pdfIn PDF document text
  • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/o6t4bsfll8vombpre3t0f9cb1v/nunaf.pdfIn PDF document text
  • https://1am130r6h1n1-k11a7.com/contents/files/lupopixinadovidi.pdfIn PDF document text
  • http://staractivecollection.com/resimler/site/files/revobevusopubodut.pdfIn PDF document text
  • http://hokkaido-love87.com/app/webroot/js/ckfinder/userfiles/files/84857579461.pdfIn PDF document text
  • http://agriturismolescuderie.eu/userfiles/files/17441613812.pdfIn PDF document text
  • http://www.la-rocca.pl/app/webroot/files/files/biravudi.pdfIn PDF document text
  • http://www.de.ruben.pl/ckfinder/userfiles/files/20720233709.pdfIn PDF document text
  • http://thrifty-uy.com/files/others/78411953100.pdfIn PDF document text
  • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/48611f91958214c4c638c80b339dd4fa/pegakiniwoditi.pdfIn PDF document text
  • http://xn--38-mlcqjbufcz6h.xn--p1ai/userfiles/file/47190634852.pdfIn PDF document text
  • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16140f1ce5446c---61639564758.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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